TechXR Forum - Recent activity

Commented: Build settings black screen problem

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Commented: My ball is fall down from the maze What I am doing wrong?

Fri, 17 Oct 2025 06:51:38 +0000

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Commented: Unity Crashed And I Lost Almost Everything! How To Recover My Scene?

Wed, 15 Oct 2025 09:51:23 +0000

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Why Build Setting screen is blank/empty?

Thu, 08 Dec 2022 12:52:39 +0000

Why Build Setting screen is blank/empty? Build window is empty when building joystick controls or app.

Where we can find the Live Class and Doubt Class Recording?

Sat, 03 Dec 2022 06:57:01 +0000

I am not able to find the Live Class and Doubt Class recording.

Answer edited: This Error is coming Exception: TechXR Error. Enter the Valid License Key TechXR.core.sense, Runtimelicecnse .check License or ,Runtime (at Ofe252cBc43b4fccB591aOfaf1). Assembly 'Assets/TechXR/Plugins/EditorScripts.dlI' will not be loaded due to errors: Unable to resolve reference 'Vuforia.UnityExtensions. Is the assembly missing or incompatible with the current platform?

Tue, 29 Nov 2022 12:35:07 +0000

Create a new project

If you are using the unity version(2019).
- Create a new project.
- Import Vuforia package(8.5.9)
  - Go to windows (Top panel) -> packages -> vuforia(8.5.9) Import.
- Import the SDK TXDK_DeveloperCube_1.08(For Unity 2019.4.x version)
- Enter the Dev key you will get the dev key from week - 4.
  - Dev Key - XYZ
If you are using the unity version(2021).
- Create a new project.
- Import Vuforia package(10.9 Latest Version)
  - https://developer.vuforia.com/downloads/SDK
- Import the SDK TechXR_DevCube_SDK (Unity Version 2021.XYZ)
- Enter the Dev key you will get the dev key from week - 4.
  - Dev Key - t6tnwL1cq20A7Tcs8w8L

Where we can download Unity3D Version 2019?

Fri, 25 Nov 2022 08:28:18 +0000

Where we can download Unity3D Version 2019? I am not getting the 2019 unity version in UnityHub where I can download it.

VR scene, the camera is showing my face How to solve this issue?

Sat, 29 Oct 2022 05:30:12 +0000

VR scene, the camera is showing my face I'll attach a screenshot.

I was told to Dragon rock the 3D model in the city folder which I made and from there when I am trying to open the models the source folder is empty. How to solve this issue?

Fri, 28 Oct 2022 12:41:30 +0000

I was told to Dragon rock the 3D model in the city folder which I made and from there when I am trying to open the models the source folder is empty and the textures are in png format
Have also reached a ticket previously on this topic but not got any answer that can solve the problem please help me out.

Why Visual studio not showing auto completion?

Fri, 28 Oct 2022 11:13:56 +0000

I have been having issues with Intellisense in Microsoft Visual Studio 2012. I will be working on a project, editing code and whatnot (after some time, anywhere from 5 minutes to over an hour) and all of a sudden, no more code suggestions or intellisense. Both seem to stop working completely at the same time.

How to make all this information displayed on the screen only after scanning the image and it should not go from that until I want to hide that from the screen?

Fri, 28 Oct 2022 11:05:32 +0000

I want to make all this information displayed on the screen only after scanning the image and it should not go from that until I want to hide that from the screen.

How to resolve this error?'Rigidbody' does not contain a definition for 'Addforce' and no accessible extension method 'Addforce' accepting a first argument of type 'Rigidbody'

Fri, 28 Oct 2022 10:58:44 +0000

'Rigidbody' does not contain a definition for 'Addforce' and no accessible extension method 'Addforce' accepting a first argument of type 'Rigidbody'

I'm unable to open any script as I'm getting this error message again?

Fri, 28 Oct 2022 08:05:10 +0000

I'm unable to open any script as I'm getting this error message again.

Tell me how to go back to my old sample screen?

Fri, 28 Oct 2022 07:59:47 +0000

When I download an asset after importing it if I click on sample screen then a new screen appears please tell me how to go back to my old sample screen

I have also deleted the last import but my previous screen is not coming in which I build buttons and other things

Answer edited: Invalid token in class, record, struct, or interface member declaration. Tuple must contain at least two elements. Why this error are coming?

Fri, 28 Oct 2022 07:47:36 +0000

It looks like this error happens due to version of your MSBuild, an old version of MSBuild can only compile C# version 4.
error happens due to wrong use of argument in line number 21.

In line 21 if(other.gameObject.name = "Ball").
Replace the code with if(other.gameObject.name == "Ball").

Answer edited: Assets\Scripts\BallMovement.cs(8/19): error CSI 002: ; expected How to resolve this error?

Fri, 28 Oct 2022 07:22:13 +0000

C# is case-sensitive because it takes after the C-style languages which are all case-sensitive. This is from memory here's an MSDN link which is not working for me right now I can't verify.
C# is case sensitive because it takes after the C style languages" language inheritance.
In Code int speed = 5 ;
You missed ;

using System. Collections;

using System. Collections.Generic;

using UnityEngine;

using UnityEngine.SceneManagement; public class Ballmovement : Monobehaviour

public bool , isMovingFwd, isMovingBwd, isMovingLeft, isMovingRight,

int speed = 5

// Start is called before the first frame update

void Start()

{

}

void Update()

if (isMovingFwd)

{

MoveForward ( ) ;

}

if (isMovingBwd)

{

MoveBackward();

}

if (isMovingLeft)

{

MoveLeft ( ) ;

}

if (isMovingRight)

{

isMovingRight();

}

Answer edited: Script is not showing in the console menu when I press the play button?

Fri, 28 Oct 2022 06:42:16 +0000

Did you attach your script to any of the game objects after creating it?
drag and drop your script onto any game object (Direction Light) and play the game.
Script has to be attached to a game object (any game object) in the hierarchy panel.

using System;

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class test: MonoBehaviour

{

// Start is called before the first frame update

void Start()

{

Debug.Log("Hello");

}
// Update is called once per frame

void Update()

{

}

The input axis vertical is not set up?

Fri, 28 Oct 2022 06:31:07 +0000

The input axis vertical is not set up. Hello guys, I'm new here and I trying to make my first game. So after some scripting, there is a problem it says:
ArgumentException: Input Axis vertical is not set up.

To change the input settings use: Edit -> Project Settings -> Input paddle.Update () (at Assets/scriptes/paddle.cs:11)

Answer edited: error CS1061: 'Button' does not contain a definition for 'OnClick' and no accessible extension 'OnClick' accepting a first argument (are you missing a using directive or an assembly reference?) How to create a reset button On-screen space?

Thu, 27 Oct 2022 11:14:26 +0000

It's onClick not OnClick.

using System. Collections;

using System. Collections.Generic;

using UnityEngine;

using UnityEngine.SceneManagement;

public class Reset: MonoBehaviour

{

void Start()

{

Buttm Button = this.GetComponent<Button>().onClick.AddListener(Reset);

}

Hi could not find the android character controller script on the portal?

Thu, 27 Oct 2022 10:35:00 +0000

Hi, could not find the android character controller script on the portal. Hi all,Here I have not gotten a character controller package that attaches to a unity package. I have tried countless times to add the character but every time I get an error flagged. If someone could help me out that would be brilliant.

How can add another animation? [01:24:18) Parameter 'swich' not exist. Unity Engine EventSystems.EventSyStem ; Update ()

Thu, 27 Oct 2022 09:16:37 +0000

How can add another animation Sir when I click on earth but close and open animation is not working.
[01:24:18) Parameter 'swich' not exist.
Unity Engine EventSystems.EventSyStem ; Update ()

I followed steps as shown in the course but was able to open scripts I tried using other platforms but not working.

Thu, 27 Oct 2022 08:58:59 +0000

I followed steps as shown in the course but was able to open scripts I tried using other platforms but not working.

not able to open scripts

How can I change the int data type into char data type?

Thu, 27 Oct 2022 08:33:09 +0000

How can I change the int data type into the char data type?

Movement animation is being performed except for the jump.

Thu, 27 Oct 2022 08:06:21 +0000

Movement animation is being performed except for the jump.no errors in script .. jump trigger is also applied still cant resolve the issue space key function is also mentioned in script.

why in this the word character controller in stating highlighted?

Thu, 27 Oct 2022 07:58:30 +0000

Why this the word character controller in stating highlighted? movement speed not showing here in the sidebar player controller also, mono behaviour is not highlighted in my script.

Answer edited: The type or namespace name 'SceneManagment' does not exist In the namespace 'UnityEngine' (are you missing an assemble reference). How to create a button that will reset all the objects to the initial state?

Thu, 27 Oct 2022 07:08:46 +0000

For reloading scene, write following line in method and attach it to respective button SceneManager.LoadScene(SceneManager.GetActiveScene());
Create a function in a script, write this line of code in it, and on your button "OnClick" call this function.
Check the spelling of Management in line number 4.
using System. Collections;
using System. Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
public class ResetButton : MonoBehaviour
{
public void RestartTheGame()
{
SceneManager.LoadScene(SceneManager.GetActiveScene());
}
}
Replace line number
SceneManager.LoadScene(SceneManager.GetActiveScene()); with. SceneManager.LoadScene(SceneManager.GetActiveScene().name);
using System. Collections;
using System. Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
public class ResetButton : MonoBehaviour
{
public void RestartTheGame()
{
SceneManager.LoadScene(SceneManager.GetActiveScene().name);
}
}

Answer edited: How to make a program to detect bright spots in camera's field of vision in AR game?

Thu, 27 Oct 2022 06:39:40 +0000

You can just make the spawn points brighter.
Add a particle effect on the spawn points.
Enemy spawns only from the spawn points.

DEV key for SDK. The given key is expired?

Wed, 26 Oct 2022 13:28:58 +0000

DEV key for SDK. The given key is expired

Interactable/Reticle Pointer cube doesn't enable the functions assigned the button?

Wed, 26 Oct 2022 11:53:50 +0000

My interactable cube doesn't enable the functions assigned to the button even though I've attached gaze pointer scripts to the buttons and laser pointer and physics raycaster to the sense camera it's not functioning in play mode.

Unity hub won't run fast on this machine(MAC)?

Wed, 26 Oct 2022 11:42:08 +0000

I was running unity smoothly on the new m1 MacBook but now I have to move to my old MacBook Pro. These are my specs Unity hub won't move past this on this machine.

Answer edited: error CS0104: 'Debug' is an ambiguous reference between 'IJnityEngine.Debug' and 'System.DiagnosticsDebug' What is the problem in Debug.log()?

Wed, 26 Oct 2022 11:29:47 +0000

please change your "Debug.log(........)" to "Debug.Log( .........)".
change your external scripting tool to visual studio in unity
( edit -> preferences -> Editor tools -> External script editor = visual studio / vs code)

using System. Collections;

using System. Collections.Generic;

using UnityEngine;

public class New8ehaviourScript : MononoBehaviour

// Start is called before the first frame update

{

void Start()

{

Debug. Log( "hello I am Amarjeet Kumar");

}

// Update is called once per frame

void Update()

{

}

Answer edited: How can I attach the textures to my asset

Wed, 26 Oct 2022 11:09:57 +0000

Step 1 Create an object

First, you have to open the Unity 3D project.

Select the GameObject menu in the menu bar. The GameObject Menu has several objects to create a game. Select the 3D object and pick the cube option.

The cube object will be displayed in the Scene View.

Increase the object size using the Scaling tool. Pull the arrow for the x-axis, y-axis, and z-axis. The object size can be increased.

Step 2 Create materials
Select the Assets menu in the menu bar. Select "Create" and pick the "Material" option.

Material is displayed in the assets. Now change the material name to red.

Select the Material (red) and click the color box. The color box is displayed on the left side. Choose the red color. The color is applied to your material (red).

Drag the red and drop it in the cube. The object can be changed into a red colour.

Step 3 Create shaders and textures
Right-click on the assets, Select Import the asset.

Already I have brick wall images. If you want to apply for any other images, you can apply them. Now I have selected a brick wall image. Click to the Import button.

The brick wall image is added to assets. Select the image drag and drop the image into the object. The object can be changed fully to a brick wall. Now the new material added into the assets.

Now delete the brick wall image and double click on the new material. Delete the brick wall material.

Select the material, press F2, and rename the new material to Textures.

Double click on the textures, open the brick wall image, and drag and drop the image into Textures.

Right-click on the assets, select Create, and pick the Material option.

Name for the Brick wall.

Select the Brick wall and go to the standard list box. Choose the Legacy shaders and pick the Diffuse option.

Select the Texture window open on your left side. Double click on the Brick wall. The brick wall material can be changed.

Drag and drop the Brick wall in your object. The object is fully changed into a brick wall. It’s in a darker shade.

Pick the red marked tool. Press the alt key and scroll the mouse. You can see all sides in your object with a brick wall fully applied.

Video:-

Answer edited: How can I get the edit mode in blender software?

Wed, 26 Oct 2022 08:41:52 +0000

You will get an assign option in edit mode.

At top toolbar, press the tab to open edit mode.
Open project and press tab to open edit.

How to create a transperant box in unity Disable the mesh?

Wed, 26 Oct 2022 07:59:44 +0000

How to create a transparent box in unity Disable the mesh?

Please guide me on how to access the ar vr course How I can access my course?

Wed, 26 Oct 2022 06:53:32 +0000

Please guide me on how to access the AR VR course.

Answer edited: Unable to resolve reference 'Vuforia.UnityExtensions' getting this error?

Wed, 26 Oct 2022 06:35:37 +0000

Delete TechXR folder, help>reset packages to default.
Install Vuforia 8.5.9 from the package manager.
Import SDK You will get the SDK in week 4.
How to reset package to default in unity
Create a new Unity project.
Open the Package Manager window.
Download any Package.
Select the Help > Reset Packages to Defaults option.
Close the confirmation window by clicking the X button.

I am not able to access my course?

Thu, 13 Oct 2022 13:36:01 +0000

I am not able to access my course.

Edited: The maze project, gaps are been seen while zooming in and zooming out. when I zoom out objects get dislocated?

Thu, 13 Oct 2022 13:28:36 +0000

I am at the week 1 tutorial while creating the maze project, gaps are been seen while zooming in and zooming out. when I zoom out objects get dislocated

Sir when I play my game complete seen is not loaded it loads when I move How to solve this ?

Thu, 13 Oct 2022 12:29:35 +0000

What I need to do is when the scene is loaded, load the player position. What happened with me is only the scene load but the player position not loading !! if I removed the scene Sir when I play my game complete seen is not loaded it loads when I move How to solve this ?

I have completed the submission of the week six project today and finished all the assignments and attended all videos but some live recordings are missing from my tech XR portal I have attended those live classes but the course only says 86% complete ?

Thu, 13 Oct 2022 12:07:54 +0000

Hello. I have completed the submission of the week six project today and finished all the assignments and attended all videos but some live recordings are missing from my tech XR portal I have attended those live classes, but it says the live class has not started yet. Those recordings were available even last week, and I have seen those lectures and because I am unable to check that, the course only says 85% complete. Even though I have followed along with all videos and submitted everything if it can be checked why it's saying live class has not started yet? Because even week 2 and week 3 live classes which happened a long time ago are not accessible.

Answer edited: Where I can download geotag 3d model?

Thu, 13 Oct 2022 12:02:44 +0000

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Edited: The problem while importing packages .zip folder are not opening inside Unity?

Thu, 13 Oct 2022 11:41:22 +0000

Every time I try to import any package I get this error information - "Error while importing package: Couldn't decompress package".

How to solve this Please set the Package Name in Player Settings. The value must follow the convention 'com.YourCompanyName.YourProdudNarne' and can contain alphanumeric characters and an underscore ?

Thu, 13 Oct 2022 10:40:09 +0000

Please set the Package Name in Player Settings. The value must follow the convention 'com.YourCompanyName.YourProdudNarne' and can contain alphanumeric characters and an underscore. Each segment must not start with a numeric character or underscore.

Should I have to install vuforia when ever I start a new project ?

Thu, 13 Oct 2022 10:19:58 +0000

Should I have to install vuforia whenever I start a new project? Or is it only one-time because I am facing an issue, whenever I open a new project I have to install

Not able to interact with the buttons although the gaze pointer script is attached to the buttons but not able to interacting?

Thu, 13 Oct 2022 09:39:43 +0000

I am facing an issue using the TechXR SDK I am not able to interact with the buttons although the gaze pointer script is attached to the buttons I can point the button with the cube but am not able to interact with it.

Edited: I got error - Assets\Scripts\PlayerController.cs(13,44): error CS0246: The type or namespace name 'characterController' could not be found (are you missing a using directive or an assembly reference?

Wed, 12 Oct 2022 11:04:25 +0000

I got error - Assets\Scripts\PlayerController.cs(13,44): error CS0246: The type or namespace name 'characterController' could not be found (are you missing a using directive or an assembly reference? I have read all the example scripts and they do not reference a component within the game. The script I am trying to run references the component 'character controller' and errors when trying to test the movement on a character in the game.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerController : MonoBehaviour
{
charactercontroller charactercontroller;
public float MovementSpeed = 5;
public float gravity = 9.8f;
float yMovement;
void Start()
{
charactercontroller = GetComponent<CharacterController>();
}
void Update()
{
float horizontal = Input.GetAxis("Horizontal") * MovementSpeed;
float vertical = Input.GetAxis("Vertical") * MovementSpeed;
charactercontroller.Move(transform.forward * vertical + transform.right * horizontal);
if(charactercontroller.isGrounded)
{
yMovement = 0;
}
else
{
yMovement -= gravity;
charactercontroller.Move(new Vector3(0, yMovement, 0));
}
}
}

Edited: I have downloaded the character controller unity package but after importing and attaching the script to the player. The player is not moving.

Wed, 12 Oct 2022 10:32:18 +0000

I have downloaded the character controller unity package but after importing and attaching the script to the player. The player is not moving.
InvalidOperationException: You are trying to read Input using UnityEngine.Input class, but you have switched active input handling to Input System package in Player Setting

Edited: How to resolve "Error searching for packages : UnityEditor.EditorApplication:lnternal_CallUpdateFunctions ()"Error searching for packages Cannot perform upm operation: Unable to perform online search?

Wed, 12 Oct 2022 10:31:36 +0000

Hello,
I am working on Unity3D. I get this error when I open the package manager Cannot perform upm operation: unable to verify the first certificate [NotFound] UnityEditor.EditorApplication:Internal_CallUpdateFunctions() Is there a URL I need to whitelist?

Cannot perform upm operation: Unable to perform online search:Cannot connect to 'api.unity.com' (error code: ENOTFOUND). Verify your environment firewall policies allow connection to this host name. lf your system is behind a proxy, verify your proxy environment variable.

Error searching for packages : UnityEditor.EditorApplication:lnternal_CallUpdateFunctions ()

After adding the box collider my character falls down when I click on the play option how to solve that?

Wed, 12 Oct 2022 10:12:58 +0000

After adding the box collider my character falls down when I click on the play option how to solve that?

Answer edited: Can't open any projects: Shader compiler initialization error :Failed to read D3Dcompiler_47.DLL?

Wed, 12 Oct 2022 10:04:56 +0000

The antivirus software I used (360 Total Security) seemed to be locking the DLL from the Unity version AT INSTALLATION, so even if you deactivate the antivirus, you can't open projects, so you need to deactivate/uninstall it, then install the version you need and that solves the problem.
Turn Off the Windows Defender then try to Open Unity Hub with “Run As Administrator”.